7 Things to Watch this Week (2/16/15 - 2/22/15)

This may not be the busiest TV week we've ever known, but if you're a fan of the head-smashing, land-conquering exploits of History's Vikings, Season 3 premieres on Thursday. Plus, CBS debuts its new version of The Odd Couple while Triumph the Insult Comic Dog stars in his own series on Adult Swim.

Also, despite creator Bruno Heller originally planning to bring the character in during a later season, Gotham will begin to tell the tale of The Joker this week. Meanwhile, Justified brings back Patton Oswalt, Cain returns to Supernatural, and Peggy Carter's been apprehended by her own organization.

"This is America -- nobody wants to wait," creator Bruno Heller said of his decision to include traces of Batman's greatest foe, The Joker, in the first season of Gotham. A villain he initially wanted to bring in later on in the life of the show. In "The Blind Fortune Teller" (which also introduces us to The Flying Graysons), Gordon takes Leslie to the circus, but the outing turns dangerous when a dead body is found on the carnival grounds.

Marvel's Agent Carter: "Snafu"

TUESDAY, February 17th at 9/8c on ABC

In the penultimate Season 1 episode of Agent Carter, Peggy finds herself capture and cornered by the SSR. Meanwhile, Chief Dooley and his men close in on Howard Stark. Here's a preview...

Supernatural: "The Executioner's Song"

TUESDAY, February 17th at 9/8c on The CW

Timothy Omundson (coming off a hilarious season of ABC's Galavant) returns to Supernatural as Cain this week in "The Executioner's Song." So while Dean, Sam, and Castiel deal with the world's first-ever murderer, Rowena confronts Crowley after he bails on plans with her in order to help the Winchesters.

Justified: "Sounding"

TUESDAY, February 17th at 10/9c on FX

Patton Oswalt returns to Justified as the bumbling Constable Bob in an episode that features Ava skipping town. Probably fearing for her safety following Katherine Hale's (Mary Steenburgen) obvious suspicions over her allegiance. Here's a glimpse...

Matthew Perry and Thomas Lennon take over the iconic roles of Oscar Madison and Felix Unger for CBS' new multi-cam reboot of The Odd Couple - a property that found giant success in the 60s and 70s as a play, a film, and a long-running TV show. The Wire's Wendell Pierce and Community alum Yvette Nicole Brown also star.

In the Season 3 premiere of Vikings, Ragnar and Lagertha's combined fleets depart Kattegat once more for Wessex, but this time they bring settlers. Meanwhile, King Ecbert (Batman Begins' Linus Roache) proposes a deal.

Triumph (Robert Smigel) and 30 Rock's Jack McBrayer star as former child actors who starred in a Lassie-like show from the 80s and 90s. After their show's cancellation prompted a depraved downward spiral, Jack is back on the straight and narrow path when Triumph finds his way back into his life.